The side effects of a new drug are being tested against a placebo. A simple random sample of 565 patients yields the results below. At a significance level of = 0.10,is there enough evidence to conclude that the treatment is independent of the side effect of nausea?

Result	Drug	Placebo	Total
Nausea	36	13	49
No nausea	254	262	516
Total	290	275	565

1. The null hypothesis ₀:
2. The alternative hypothesis :
3. The level of significance =
4. The degrees of freedom:
5. The test statistic:
6. The critical value:
7. Decision: